Anti-aging overhead insulated wire and preparation process thereof

The invention relates to the technical field of electric wires and cables, and provides an anti-aging overhead insulated wire and a preparation process thereof, and the overhead insulated wire comprises a wire and an insulating layer coating the surface of the wire. The insulating layer comprises the following components in parts by mass: 120 parts of butadiene styrene rubber, 35-90 parts of halogenated butyl rubber, 20-35 parts of polycarbonate, 30-40 parts of mica powder, 2-3 parts of an antioxidant, 1-2 parts of an accelerant, 0.5-1 part of sulfur and 3-4 parts of zinc oxide. According to the technical scheme, the problem that in the prior art, an overhead insulated wire is poor in aging resistance is solved. 本发明涉及电线电缆技术领域，提出了一种耐老化架空绝缘导线及其制备工艺，架空绝缘导线包括导线和包覆于导线表面的绝缘层，绝缘层包括以下质量份的组分：丁苯橡胶120份、卤化丁基橡胶35~90份、聚碳酸酯20~35份、云母粉30~40份、抗氧剂2~3份、促进剂1~2份、硫磺0.5~1份、氧化锌3~4份。通过上述技术方案，解决了现有技术中架空绝缘导线耐老化性能较差的问题。